1 /*
2 * Copyright (c) 2025 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <hdf_base.h>
17 #include <hdf_device_desc.h>
18 #include <hdf_sbuf_ipc.h>
19 #include "v1_0/scsi_peripheral_ddk_stub.h"
20 #include "hdf_log.h"
21 #include "usbd_wrapper.h"
22
23 #define HDF_LOG_TAG scsi_ddk_driver
24
25 using namespace OHOS::HDI::Usb::ScsiDdk::V1_0;
26
27 struct HdfScsiDdkHost {
28 struct IDeviceIoService ioService;
29 OHOS::sptr<OHOS::IRemoteObject> stub;
30 };
31
ScsiDdkDriverDispatch(struct HdfDeviceIoClient * client,int cmdId,struct HdfSBuf * data,struct HdfSBuf * reply)32 static int32_t ScsiDdkDriverDispatch(struct HdfDeviceIoClient *client, int cmdId, struct HdfSBuf *data,
33 struct HdfSBuf *reply)
34 {
35 auto *hdfScsiDdkHost = CONTAINER_OF(client->device->service, struct HdfScsiDdkHost, ioService);
36
37 OHOS::MessageParcel *dataParcel = nullptr;
38 OHOS::MessageParcel *replyParcel = nullptr;
39 OHOS::MessageOption option;
40
41 if (SbufToParcel(data, &dataParcel) != HDF_SUCCESS) {
42 HDF_LOGE("%{public}s: invalid data sbuf object to dispatch", __func__);
43 return HDF_ERR_INVALID_PARAM;
44 }
45 if (SbufToParcel(reply, &replyParcel) != HDF_SUCCESS) {
46 HDF_LOGE("%{public}s: invalid reply sbuf object to dispatch", __func__);
47 return HDF_ERR_INVALID_PARAM;
48 }
49
50 return hdfScsiDdkHost->stub->SendRequest(cmdId, *dataParcel, *replyParcel, option);
51 }
52
HdfScsiDdkDriverInit(struct HdfDeviceObject * deviceObject)53 static int HdfScsiDdkDriverInit(struct HdfDeviceObject *deviceObject)
54 {
55 HDF_LOGI("%{public}s: driver init start", __func__);
56 return HDF_SUCCESS;
57 }
58
HdfScsiDdkDriverBind(struct HdfDeviceObject * deviceObject)59 static int HdfScsiDdkDriverBind(struct HdfDeviceObject *deviceObject)
60 {
61 HDF_LOGI("%{public}s: driver bind start", __func__);
62 auto *hdfScsiDdkHost = new (std::nothrow) HdfScsiDdkHost;
63 if (hdfScsiDdkHost == nullptr) {
64 HDF_LOGE("%{public}s: failed to create HdfScsiDdkHost object", __func__);
65 return HDF_FAILURE;
66 }
67
68 hdfScsiDdkHost->ioService.Dispatch = ScsiDdkDriverDispatch;
69 hdfScsiDdkHost->ioService.Open = nullptr;
70 hdfScsiDdkHost->ioService.Release = nullptr;
71
72 auto serviceImpl = OHOS::HDI::Usb::ScsiDdk::V1_0::IScsiPeripheralDdk::Get(true);
73 if (serviceImpl == nullptr) {
74 HDF_LOGE("%{public}s: failed to get implement service", __func__);
75 delete hdfScsiDdkHost;
76 return HDF_FAILURE;
77 }
78
79 hdfScsiDdkHost->stub = OHOS::HDI::ObjectCollector::GetInstance().GetOrNewObject(serviceImpl,
80 OHOS::HDI::Usb::ScsiDdk::V1_0::IScsiPeripheralDdk::GetDescriptor());
81 if (hdfScsiDdkHost->stub == nullptr) {
82 HDF_LOGE("%{public}s: failed to get stub object", __func__);
83 delete hdfScsiDdkHost;
84 return HDF_FAILURE;
85 }
86
87 deviceObject->service = &hdfScsiDdkHost->ioService;
88 return HDF_SUCCESS;
89 }
90
HdfScsiDdkDriverRelease(struct HdfDeviceObject * deviceObject)91 static void HdfScsiDdkDriverRelease(struct HdfDeviceObject *deviceObject)
92 {
93 HDF_LOGI("%{public}s: driver release start", __func__);
94
95 if (deviceObject->service == nullptr) {
96 return;
97 }
98
99 auto *hdfScsiDdkHost = CONTAINER_OF(deviceObject->service, struct HdfScsiDdkHost, ioService);
100 if (hdfScsiDdkHost != nullptr) {
101 delete hdfScsiDdkHost;
102 }
103 }
104
105 static struct HdfDriverEntry g_scsiddkDriverEntry = {
106 .moduleVersion = 1,
107 .moduleName = "",
108 .Bind = HdfScsiDdkDriverBind,
109 .Init = HdfScsiDdkDriverInit,
110 .Release = HdfScsiDdkDriverRelease,
111 };
112
113 #ifdef __cplusplus
114 extern "C" {
115 #endif /* __cplusplus */
116 HDF_INIT(g_scsiddkDriverEntry);
117 #ifdef __cplusplus
118 }
119 #endif /* __cplusplus */
120